Dust-proof guard for automatic axle-oilers.



1.]. McGUlRE.

DU ST PROOF GUARD FOR AUTOMATIC AXLE OILERS.

APPLICATION FILED JULY 25, 1914.

Patented June 8, 1915.

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THE NORRIS PETERS JOHN J. MCGUIRE, OFYEWjYORK, N. Y.

DUST-PROOF GUARD FOR AIITOMATIG AXLE-OILERS.

Application filed July 25, 1914. .Serial No. 853,042.

To all-whom it may concern Be it known that I, JorrNJ. MCGUIRE, a

citizen of the United States, residing at New York city, borough of Manhattan, county and Sta-te of New York, have invented certain new and useful Improvements inDust- Proof (tuemds for Automatic AXle-Oilers, of which-the following is a specification.

My invention. relates to oilers for axles,

- and inwhich like letters indicate like parts.

Figure 1 is a central section through a hub and parts associated therewith used in connectionwithmy improved oiler. Fig. 2 is a vertical section on the line 2+2 ofFig.

1 looking in the direction of the arrows.

Fig. 3 is acrosssection through the spindle and hub'box. Fig; 4 is a detail showing partly in elevation and partly broken'away, a collar forming a part of my device. Fig. '5 is a fragmentary section showing the grease receptacle diiferent in form than the one shown at theright of Fig. 1.

The hub appears at 6, the spokes at 7, and.

a cavity in the outer end of the hub is shown at 8. The hub is provided with a bearing surface 6, of annular form, sunken into the inner end thereofthat is, into the end which is to be nearest the wagon. Encirclingthe outer end of the hub is a hub collar 9 made of metal. In this instance the hub collar is provided with a bushing 10, also of metal preferably pressed or otherwise rigidly secured to it. the parts 910 may be made in a single piece, which I designate as a whole as the hub collar. The bushing 10 is provided with anchorages 10 as shown in Fig. 2. I The hub collar is provided internally with athread 11. A closure cap is shown at 12 and is provided with a thread 13 mating the thread of the hub collar. The closure 12 is Specification of Letters men.

If desired, however,

Patented June 8, 1915.

further provided with a wrench hole 1 1 of angular conformity to facilitate the application of a wrench in order to turn the closure cap. A shoulder 15 is provided for the closurecap, and is adapted to lodge against the adj acent portion of the hub collar. The hub'fi carries a tapered boX 16, which ma be of the usual or any preferred shape. The aXle is shown at 17 and is provided with an annular shoulder 19 and with a substantially cylindrical portion 19, this portion and a tapered portion 20 together forming a spindle. The spindle is provided with a longitudinally disposed groove 21 and with a threaded reduced portion 22. A nut 23'is threaded internally and fitted upon'this portion 22, the nut being further provided with an annular shoulder 23 which is adapted to lod e a ainstthe ad acent ortron of the ity S. The nut 23 is provided with a pair of oil. holes 24, 24. The hole 24: is in registry with the groove 21 so as to readily supply grease thereinto, and the hole 2% is so located as to readilysupply grease in between the inner surface of the box 16 and theouter surface of the spindle. A. collar 26 of metal is shrunken or otherwise rigidly secured upon the portion 19 of the axle. This collar isprovided with an annular flange 2 7 which engages an absorbent packing28, which is mounted within an annular groove 29 carried by the hub, and has the form of a wick or of an endless cord. The collar 26 is further provided with agroove 30,1and located within this groove is a spiral spring 31 formed of a single turn of stout spring wire, as indicated in Fig. 4. This spring when unconfined has a spiral form, but when in position is practically a ring. An annular packing 32, which may be made of leather or other flexible material suitable for the purpose, is located within the groove 30 and is concentric to the annular flange 27. The collar 26 is provided with an annular shoulder 33, which abuts against the adjacent end portion of the box 16. In some instances, as indicated in Fig. 5, the hub collar has the form shown at 34 and detachably fitted upon it is a collet 35. The outer end of this collet has an enlarged, diameter and is threaded internally and fitted with a clo sure member 36, the latter having generally the form of a cap, and being provided with hub-that is against'the bottom of the cavan angular hole 37 to facilitate the application of a wrench in order to turn the closure member.

Whether the closure member have the form shown at 12 in Fig. 1, or at 36 in Fig.

V 5 it cooperates with the adjacent portion of thence in between the outer surface of the spindle and the inner surface of the box 16. Then as the hub is subjected to ordinary use the grease is carried from the groove 21 and around the spindle 20 and thus does its work 7 of lubricating. The grease can not escape use of the device, the grease is gradually at the inner end of the hub, as it is unable to pass the packings 32 and 28. The packing 32, held by the spring 31 against the adjacent portion 6 of the hub, forms a very efiicie'nt grease tight joint. If through any chance a little of the grease should escape past the packing 32, it is unable to pass through the packing 28 or around this packing or between thispacking and theflange 27.

It will be noted that the annularshoulder 33 is a bearing surface, and that it directly engages the adjacent annular bearing surface of the hub.

I find that in practice, during the normal Worked inwardthat is ittends to travel to the left according to Fig. l. I also find that while oils more or less thick may beemployed as lubricants, it is preferable to use a tolerably heavy grease where the device is employed in connection with heavy'vehicles.

I do not limit myself to the precise con Copies of this patent may be obtained for struction shown as variations may be made therefrom without departing from the spirit of my invention. 7

I claim:

1. A device of the character described comprising a revoluble hub provided with an end portion and with an annular bearing surface, a fixed spindle extending into said hub, a collar mounted upon said spindle and extending into engagement with said annular bearing surface, said collar being provided with a groove, a packing located Within said groove and engaging said an-c nular bearing surface of said hub, and a spring carried by said collar and engaging.

said packing in order to press thelatter against said annular bearing surface of said hub.

2. A device of the character described, 7 comprising a fixed spindle, a collar mounted v thereupon and provided with an annular flange and with an annular groove, said collar being further provided with an annular bearing surface disposed adjacent said groove, a spring: of. general annular form located within said groove, a'packing ofannularform disposed withinsaid groove and engaging said spring, a hub revolubly mounted-upon said spindle and provided with a bearing surface for engaging said annular bearing surface of said collar, said hub being further provided with agroove into which extends said annular flange with Y which said collar is provided, anda packing disposed within said lastmentioned groove and engaged'by said flange.

name to this specification in the presence of two subscribing witnesses.

Witnesses:

L. ALTMAN, j WALTON HARRISON.

five cents each, by addressing the Commissioner of Patents,

Washington,ID. 0.? I I JOHN JqMceuian v In testimony whereof I have signed my, 

